APA stil citiranja

Porter, M. E. (1980). Competitive strategy: Competitive strategy : techniques for analyzing industries and competitors. New York ; London: The Free Press : Collier Macmillan.

Chicago stil citiranja

Porter, Michael E. Competitive strategy: Competitive strategy : techniques for analyzing industries and competitors. New York ; London: The Free Press : Collier Macmillan, 1980.

MLA stil citiranja

Porter, Michael E. Competitive strategy: Competitive strategy : techniques for analyzing industries and competitors. New York ; London: The Free Press : Collier Macmillan, 1980.